One is 23 lbs, the other 25 lbs. The 23 lb board is full carbon top and bottom, with double carbon in the stance are. The 25 lb board is full carbon top and bottom with double carbon for 90% of the deck. I had some extra carbon, so I used it. Oops! I didn't think it would add that much weight. But even at 25 lbs, it feels like a feather.